Fig. 3
From: Sustainable and recyclable super engineering thermoplastic from biorenewable monomer
Quantum chemical simulation. a Schematic illustration of different vibration energy levels in a potential energy well (x-axis: interatomic distance). b Optimised ground state geometries of (top) SUPERBIO and (bottom) BPA-SEP repeating units. C, black; H, white; O, red; and S, yellow. c Potential energy curve along with relative length of repeating unit
